Offset coriolis turbulator blade
AssigneeGeneral Electric Company
InventorsChing-Pang Lee, Wenfeng Lu
Life of this patent
Estimating the term…
Abstract
A turbine rotor blade includes an airfoil having pressure and suction sidewalls extending longitudinally in span from root to tip. The sidewalls are spaced apart between leading and trailing edges and joined together by longitudinal partitions defining flow channels therein. Rows of first and second slant turbulators extend from one of the sidewalls in one of the channels and are offset longitudinally. The first and second turbulators overlap chordally to eliminate an axial gap therebetween while maintaining a radial gap for tripping cooling air channeled along the span of the channel.
Claims28
A turbine rotor blade comprising:
- an airfoil, platform, and dovetail integrally joined together;
- said airfoil including pressure and suction sidewalls extending longitudinally in span from a root at said platform to a tip;
- said sidewalls being spaced laterally apart between leading and trailing edges and joined together by chordally spaced apart partitions extending longitudinally between said root and tip to define a plurality of flow channels for channeling a coolant therethrough;
- and
- one of said channels includes one row of substantially identical first slant turbulators extending from one of said sidewalls, and another row of substantially identical second slant turbulators extending from said one sidewall and offset longitudinally and overlapping chordally said first turbulators.
A turbine rotor blade comprising:
- an airfoil, platform, and dovetail integrally joined together;
- said airfoil including pressure and suction sidewalls extending longitudinally in span from a root at said platform to a tip;
- said sidewalls being spaced laterally apart between leading and trailing edges and joined together by chordally spaced apart partitions extending longitudinally between said root and tip to define a plurality of flow channels for channeling a coolant therethrough;
- at least one of said channels including two rows of first and second slant turbulators extending from a common one of said sidewalls, and being offset longitudinally;
- and
- each of said first turbulators in one row chordally overlaps an opposite second turbulator in the other row.
Dependencies are inferred from the claim text.